Switch to side-by-side view

--- a/doc/upplay.txt
+++ b/doc/upplay.txt
@@ -188,30 +188,6 @@
 Most people will find that the font sizes (and buttons/icons) are too small
 on high DPI displays.
 
-As of version 1.2.5, the GUI can be partially adjusted by editing two style
-sheet files. To adjust the font sizes:
-
-- Edit `/usr/share/upplay/cdbrowser/cdbrowser.css`, and uncomment the
-  "font-size" directive at the top. Adjust the size to taste, meaning that
-  the line should look like the following (with your preferred value in
-  place of 30):
-
-    font-size: 30pt;
-    
-- Edit `/usr/share/upplay/common.css` and adjust the 6 font-size
-  directives. An adequate approach will usually be to multiply the sizes by
-  some constant factor (e.g.: 2 ...).
-
-On Windows, use 'notepad' or an equivalent pure text editor to edit the
-files, which are located in the 'share' and 'share\cdbrowser'
-subdirectories of the top installation directory (e.g: 'C:\Program Files
-(x86)\Upplay\'). You need to specify "all files" when opening the files,
-because notepad does not list '.css' files by default (only '.txt').
-
-The adjustment is not perfect for now: the player section does not update
-its size, which means that some titles will be truncated (in the top left
-area), and the icon sizes are unchanged. Arbitrary text truncation may
-happen in places. This will hopefully be improved in a future release.
-
-There are other, system-based, approaches described on the following Qt page:
-http://doc.qt.io/qt-5/highdpi.html
+As of version 1.2.10, the font sizes can be adjusted from the preferences
+menu ('view->preferences', 'Application Tab', 'Display Scale'). Just choose
+a decimal scale factor.